Question

What is `Arcsin (.5)`?

Answer 1

Find arcsin (0.5)

Explanation:

Trig table gives ->`sin x = 1/2 = 0.50` --> arc `x = pi/6` or 30 deg
Trig unit circle gives another arc x that has the same sin value:
-> `x = pi - pi/6 = (5pi)/6` or 150 deg